Soviet Union

Vladimir Drinfeld, 1954年 - ）

Soviet Union

For his work onquantum groupsand for his work innumber theory.

Gregori Aleksandrovi（t?）ch Margulis,

Soviet Union

Provided innovative analysis of the structure ofLie groups. His work belongs tocombinatorics,differential geometry,ergodic theory,dynamical systems, and Lie groups.

Sergei Novikov,

Soviet Union

Made important advances in topology, the most well-known being his proof of the topological invariance of thePontrjagin classesof thedifferentiable manifold. His work included a study of the cohomology and homotopy of Thom spaces.